.main-menu{
    display: flex;
    height: 100vh;
    width: 20vw;
    background-color: slategray;
    flex-direction: column;
    color: lightblue;
}
.main-menu a{
    color: ghostwhite;
    text-align: center;
    padding: 1rem;
    font-size: 1rem;
}